Spraying-nozzle.



W. T. YARD.

SPRAYING NOZZLE. APPLNATION FILED AUG.14, 190s.

Patented Feb. 16, 1909.

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wide a: novel structure;

WILLIMIT, YARD; OF 'TRENToNfiNE-w' JERSEY.

SPRAYING-NOZZLE No; 912,520. J Specification of Letters Patent.Patented. Feb; 16, 1909.

Application filed. August 1a, 1906. Serial No. 330,607.

T0511. whom it may concern:

.Be it known that I, lVILLIAM T. YARD, a

citizen of the United States, residing at Trenton, in the county ofMercer and State of New Jersey, have invented a new and usefulSpraying-Nozzle, of'which the following is a specification.

This invention relates to spraying nozzles, andmay be employed fordelivering insecticides, white wash, and like substances, being:npphcable to a vehicle, or manually manipu- :lated, as found convenientor necessary.

One of the principal objects is to provide a-nozzle' thatwill produce afinely divided even spray, and will distribute the same over acomparatively great area.

"Another and important object is to prowhich can be quickly freedfronitthe accumulation of solid mate-j ria l,:;-sh-ould. it ,becorneclogged therewith,- without the necessity of dismembering the nozzle. F

The preferred :form 0f construction is illustrated in the accompanyingdrawings, wherein Figure 1 is a side elevation of the structure. Fig. 2is a vertical sectional view through the same. Fig. 3 is a frontelevation of the nozzle. Fig. i is a view in elevation of the plunger.Fig. 5 is a detail sectional view through the plunger on the line 7-7 ofFig. 4.

Similar reference numerals designate corresponding parts in all thefigures of the drawings.

While in the present embodiment, the invention is to be applied to adistributor mounted on a vehicle, and is intended for spraying potatovines, small fruit bushes, and the like, it will be apparent that thestructure may be hand directed.

The spraying nozzle is designated as a whole, by the reference numeral13. Said nozzle is connected to the usual pump by a flexible pipe 14.The support for the nozzle is in the form of a bracket 15, having ablock 17 pivoted, as shown at 18 between the arms thereof. A clampingbolt 19 connects said arms of the bracket in rear of the block 17, andhas a thumb screw 20, threaded upon one end. So far as thus described,the structure is substantially the same as that disclosed in a formerpatent granted to me on January 24, 1905, and numbered 7 80,928.

The nozzle in the present case, consists of a casing 21, carried bya-tubular standardi22 that constitutes an inlet to the casing,=and hasan oifset nipple 23, connected to the supply pipe 14:. The lower end ofthe standard has a shank 24 passing through the block 17, and held inplace by a nut 25, threaded on its lower end. The rear end. of thecasing .21 consists of a section 26 .havinga suitable connection27 withthe main body of the casing,

and on the rear-end of the section 126-is= screweda cap. 28, providedwith an coutwardly dished endwall=29 having. a central and slightlyelongated opening 30 therethrough. vA stufiing box in'the formuof aplug. 31f is: threadedinto' the opposite; end of the casing 21, and isprovided-in;itsxinner I end 'Wlt l1 :a. socket ;32 .to, receive packing83.

A packing iwashen l: closes" the inner; enchof ":theisocketzg32.

Il'R-otatahfly arid,.slidab lymonntedswithin'thezas ecasilirg:-Zf;;plt1ngeli husk-35,5 secured-t 'fgh -i inerien'daof a stem-336.thatrpasses; longitudinallyi lthrough''the" casing-,2 through .the:1paCking washer} 34,:andv the stufiing vbox- 31,. its outer end havinga suitable actuating knob 37. The plunger disk is provided in itsperiphery with diagonal liquid-conducting channels 88, and its outerface, which is disposed in opposition to the discharge orifice 30, hasslots or grooves 39 communicating at their outer and deeper ends withthe channels 38, said grooves 89 gradually decreasing in depth and beingdisposed tangentially to the adjacent end of the stem 36, as fullyillustrated in Figs. 4 and 5. A coiled spring 40 is located on the stem,one end bearing against the packing washer 34, and the other against theplunger disk 35.

In using the device, the material to be sprayed is forced through thestandard 22, and thence in to the casing, passing through the diagonalgrooves of the plunger, and out of the discharge orifice. It will beobserved by reference to Fig. 2 that the plunger is held by the springagainst the marginal portions of the end wall 29. The said wall, beingdished or concaved, a chamber is formed between it and said plunger. Theliquid passing through the inclined or diagonal groove 88, will be givena whirling motion,

' and experience has demonstrated that, as a result, a finely dividedeven spray is produced by the nozzle. If the channels become cloggedwith solid or undissolved material, the plunger can be readily revolvedor reciprocated by operating the handle 37, and thus the structure maybe freed from the accumulations. The spring, as shown, performs a doublefunction. In the first place, it maintains'the plunger in operativeposition at the discharge end of the casing, and furthermore, inasmuchas it bears against the washer 34, it will insure the proper engagementof the packing with the stem and avoi all leakage at the stuffing box.The structure moreover is exceedingly simple, as will be apparent, andcan be readily and cheaply manufactured.

From the foregoing, it is thought that the construction, operation, andmany advantages of the herein described invention, will be apparent tothose skilled in the art, without further description, and it will beunder- 7 stood that various changes in the size, shape,

proportion, and minor details of construction, may be resorted toWithout departing from the spirit or sacrificing any of the advantagesof the invention.

Having thus fully described my invention, what I claim as new, anddesireto secure by Letters Patent, is

1. In a spraying nozzle of the character set forth, the combinationwitha'casing having a discharge orifice, of a plunger located the casing'andhaving'a 'fiat face opposed to the orifice, said plunger having liquidconducting channels extending therethrough, and inwardly tapered groovesin the flat face that is opposed to the discharge orifice, saidstantially parallel relation andtangentially v to the longitudinal axisof the plunger. 7

2; In a spraying nozzle of the character set forth, the combination w1tha tubular casing having an inlet opening between its ends, an outwardlydished end wall provided with a central discharge orifice and a plugthreaded into the opposite end of the'casing to said dished end wall'andhaving a packing-receiving socket in its inner end of less diameter thanthe same, of a reciprocatory plunger slidably mounted in the casing andmovable toward and from the orifice, said plunger having diagonallydisposed liquid conducting channels through its margin, a stem connectedto the plunger and slidably extending through the plug and socket,packing located in the socket, a Washer arranged in the inner'end ofsaid socket against the packing and mounted on the stem, and a coiledspring surrounding the stem, said spring being interposed between andhearing at its opposite ends against the plunger and Washer. a Intestimony, that I claim the foregoing a my own, I have hereto atlixed mysignature in the presence of two Witnesses.

WILLIAM T. YARD.

Witnesses:

IGNATIUS Ln J AMBRE, Lm'roN SATTERTHWAIT.

